wrist-pin bearing活塞销衬套;活塞销衬;[机] 十字头销衬套;连杆小头轴套
wrist-pin hole连杆小头的活塞销孔;连杆小端孔
wrist-pin collar十字头销套
wrist-pin brass肋节销铜衬
wrist-pin肘节销
wrist-pin bush活塞销衬套
wrist-pin dearing lubrication活塞销承润滑
wrist-pin oil cup肘节销油杯
wrist-pin nut wahser肘节销螺母垫圈
N（名词） a cylindrical boss or pin attached to the side of a wheel parallel with the axis, esp one forming a bearing for a crank 活塞销